Is it possible to repair the microphone?

i've red the teardown of this phone, and it got 1/10, and discribed as nearly impossible. so im wondering if it is possible to change the microphone since it is not working, because i have to speak in speakers mode when i am talking... and when im filming, it only makes static sounds.

after 2 weeks it magically startet working again, i was just gonna show my problem to a friend and suddenly it startet working.. hehehe i was pretty drunk that night so i dont know if i just hit it in a spot that made it work.

Hey everyone,
It's me again!
My phone's mic hole gets clogged again and again occasionally (about monthly or bimonthly, sometimes even biweekly), and all I do is the same thing. Unclog the hole with a brush. It always works.
As I have repeated this procedure several times, I haven't harmed my mic yet, so it is kind of safe. You can check the functionality after repair attempt by recording a video, and comparing the volume levels of both channels.
No funny taping methods or whatsoever.
As Jack Atzmon stated above, the mic hole is prone to clogging. So it will clog again and again! So face it and clean it!
Victor de Pablo, just try cleaning it again, Andy Taylor, just do what your local Vodafone shop did, clean it. Not necessarily with a staple, use a brush. And read the comments before posting a new one!

I had the same problem with my HTC One. Turns out it was not a hardware failure, but rather something as simple as a clogged mic hole (bottom right). I VERY carefully poked out the debris with a sewing needle, making sure not to go too deep for fear of damaging the mic itself. Phew...this fix saved what would have been many hours of time transferring data and custom settings to a replacement phone.

My HTC One Remix is having microphone issues. I don't know which hole is the microphone. People are starting to get angry when I speak to them on the phone because they can't hear me. So it's the right bottom hole of the speakers?

This fix worked for me. I dropped the phone and it would only work on speaker phone, the normal phones mic made noise like water Cushing. Tried the brush bristles trick whilst on a call to my self on another phone and it cleared for a second or two a couple of times then reverted back to noise. So I decided to suck on the mic hole whilst leaving a small gap between the phone and my mouth to let some air in. I felt something small fly in to my mouth (small bit of dust I guess) and hey presto its all good again.
So if it is a dust problem you need to get it out..

Yeah! I had the exact same problem, since my phone felt to the flor and I was not able to speak anymore. (I was afraid, I thought I had to buy a new one). Now, after doing what some say about cleaning the mic hole my phone is working fine again. So, it seems that the problem was that, after falling, the mic's whole got some dust. Now it is clean of dust and I have my phone back!

Thanks

A week later UPDATE: Well, definitivelly is not solved really. It seems my MIC as got some kind of broken or so. Now it is really working but very badly and noisy. So, I keep using the handsfree way to talk (very unnoin).

The mic on my HTC one stop working mid conversation. Took it in my locall Vodafone shop and a member of staff there stuck a paper staple into the mic hole on the bottom of the phone and wiggled it about, he said it might be blocked. After a couple of attempts all seams to be back to normal. Then by the time I got home it had stopped working again. Checked on youtube found to video about mic faults and the first video said put some tape over the mic on the back of the phone to the right and above the camera lens. Tried this and all seems good now. But if you record a video the audio is very quiet.

Got this problem today googled and found this question and comments, brush didnt work but my vacuumcleaner - with a small but standard nozzle attached, did the trick, cam mic as well as phone mic works fine again (HTC One with hdr mic)

This is the second time it happenes to my htc one's mic first time i didnt do anything it fixed itself i guess lol,, and second time i used what u r suggesting a toothbrush and now my mic is back to normal thank you :)

if you can get the mic to work and you're done putting it on speaker. You have to be willing to open up your phone and replace the charging port connector. The usb port and mic are one piece. I don't know no why nobody advertises it like that.

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It's time to speak out for your right to repair

Dear New Yorkers,

Right now, New York has a chance to pass the first Fair Repair bill in
the nation. We have a chance to guarantee our right to repair electronics—like
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Stand up for the right to repair in Massachusetts.